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From 700ad9b1686d0b46073b7b2e6cea8e01e30d5f52 Mon Sep 17 00:00:00 2001
From: Samuel Gyger <gygersamuel@gmail.com>
Date: Fri, 12 Dec 2014 17:07:45 +0100
Subject: Database: fix performance for the new SQLite's query planner
(bgo#740879)
Starting with sqlite version 3.8.6, a new query planner is used.
To get back the performance on filling the CoreCache Table,
this commit provides hints to sqlite (using the UNLIKELY statement).
But the UNLIKELY statement is only supported in version 3.8.1 and
above, so in order not to raise the version of the dependency on
sqlite, we can use this new clause conditionally.
diff --git a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumArtistListModel.cs b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumArtistListModel.cs
index dee9c81..e91018b 100644
--- a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumArtistListModel.cs
+++ b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumArtistListModel.cs
@@ -46,7 +46,7 @@ namespace Banshee.Collection.Database
ReloadFragmentFormat = @"
FROM CoreArtists WHERE CoreArtists.ArtistID IN
(SELECT CoreAlbums.ArtistID FROM CoreAlbums, CoreTracks, CoreCache{0}
- WHERE CoreCache.ModelID = {1} AND
+ WHERE {4}(CoreCache.ModelID = {1}) AND
CoreTracks.AlbumID = CoreAlbums.AlbumID AND
EXISTS (SELECT 1 FROM CoreArtists WHERE ArtistID = CoreAlbums.ArtistID) AND
CoreCache.ItemID = {2} {3})
diff --git a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumListModel.cs b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumListModel.cs
index 0705eab..213f137 100644
--- a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumListModel.cs
+++ b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseAlbumListModel.cs
@@ -56,7 +56,7 @@ namespace Banshee.Collection.Database
ReloadFragmentFormat = @"
FROM CoreAlbums WHERE CoreAlbums.AlbumID IN
(SELECT CoreTracks.AlbumID FROM CoreTracks, CoreCache{0}
- WHERE CoreCache.ModelID = {1} AND
+ WHERE {4}(CoreCache.ModelID = {1}) AND
CoreCache.ItemId = {2} {3})
ORDER BY CoreAlbums.TitleSortKey, CoreAlbums.ArtistNameSortKey";
}
diff --git a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseArtistListModel.cs b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseArtistListModel.cs
index f7a2b4b..171e9e2 100644
--- a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseArtistListModel.cs
+++ b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseArtistListModel.cs
@@ -49,7 +49,7 @@ namespace Banshee.Collection.Database
ReloadFragmentFormat = @"
FROM CoreArtists WHERE CoreArtists.ArtistID IN
(SELECT CoreTracks.ArtistID FROM CoreTracks, CoreCache{0}
- WHERE CoreCache.ModelID = {1} AND
+ WHERE {4}(CoreCache.ModelID = {1}) AND
CoreCache.ItemID = {2} {3})
ORDER BY NameSortKey";
}
diff --git a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseFilterListModel.cs b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseFilterListModel.cs
index 018a0f4..2a5d4fd 100644
--- a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseFilterListModel.cs
+++ b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseFilterListModel.cs
@@ -57,10 +57,10 @@ namespace Banshee.Collection.Database
}
protected readonly U select_all_item;
- private HyenaSqliteConnection connection;
+ private BansheeDbConnection connection;
public DatabaseFilterListModel (string name, string label, Banshee.Sources.DatabaseSource source,
- DatabaseTrackListModel trackModel, HyenaSqliteConnection connection, SqliteModelProvider<T> provider, U selectAllItem, string uuid)
+ DatabaseTrackListModel trackModel, BansheeDbConnection connection, SqliteModelProvider<T> provider, U selectAllItem, string uuid)
: base (trackModel)
{
this.source = source;
@@ -124,7 +124,8 @@ namespace Banshee.Collection.Database
"{0}.{1} AND CoreTracks.TrackID = {0}.{2}",
FilteredModel.JoinTable, FilteredModel.JoinPrimaryKey, FilteredModel.JoinColumn)
: "CoreTracks.TrackID",
- filtered ? GetFilterFragment () : ""
+ filtered ? GetFilterFragment () : "",
+ connection.LikelihoodSupport ? "UNLIKELY" : ""
);
}
diff --git a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseQueryFilterModel.cs b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseQueryFilterModel.cs
index a4c00fb..339e351 100644
--- a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseQueryFilterModel.cs
+++ b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseQueryFilterModel.cs
@@ -37,6 +37,7 @@ using Hyena.Data.Sqlite;
using Mono.Unix;
using Banshee.ServiceStack;
+using Banshee.Database;
namespace Banshee.Collection.Database
{
@@ -51,7 +52,7 @@ namespace Banshee.Collection.Database
private string select_all_fmt;
public DatabaseQueryFilterModel (Banshee.Sources.DatabaseSource source, DatabaseTrackListModel trackModel,
- HyenaSqliteConnection connection, string select_all_fmt, string uuid, QueryField field, string filter_column)
+ BansheeDbConnection connection, string select_all_fmt, string uuid, QueryField field, string filter_column)
: base (field.Name, field.Label, source, trackModel, connection, QueryFilterInfo<T>.CreateProvider (filter_column, field), new QueryFilterInfo<T> (), String.Format ("{0}-{1}", uuid, field.Name))
{
this.field = field;
@@ -59,7 +60,7 @@ namespace Banshee.Collection.Database
ReloadFragmentFormat = @"
FROM CoreTracks, CoreCache{0}
- WHERE CoreCache.ModelID = {1} AND CoreCache.ItemID = {2} {3}
+ WHERE {4}(CoreCache.ModelID = {1}) AND CoreCache.ItemID = {2} {3}
ORDER BY Value";
QueryFields = new QueryFieldSet (query_filter_field);
diff --git a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseYearListModel.cs b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseYearListModel.cs
index b58d1df..5f96d2f 100644
--- a/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseYearListModel.cs
+++ b/src/Core/Banshee.Services/Banshee.Collection.Database/DatabaseYearListModel.cs
@@ -47,7 +47,7 @@ namespace Banshee.Collection.Database
FROM (SELECT MIN(CoreTracks.TrackID) AS TrackID, CoreTracks.Year FROM CoreTracks GROUP BY CoreTracks.Year) AS CoreTracks
WHERE CoreTracks.Year IN
(SELECT CoreTracks.Year FROM CoreTracks, CoreCache{0}
- WHERE CoreCache.ModelID = {1} AND
+ WHERE {4}(CoreCache.ModelID = {1}) AND
CoreCache.ItemID = {2} {3})
ORDER BY Year";
}
diff --git a/src/Core/Banshee.Services/Banshee.Database/BansheeDbConnection.cs b/src/Core/Banshee.Services/Banshee.Database/BansheeDbConnection.cs
index e9bbbf5..3ae0728 100644
--- a/src/Core/Banshee.Services/Banshee.Database/BansheeDbConnection.cs
+++ b/src/Core/Banshee.Services/Banshee.Database/BansheeDbConnection.cs
@@ -52,6 +52,20 @@ namespace Banshee.Database
get { return configuration; }
}
+ private bool? likelihood_support = null;
+ public bool LikelihoodSupport {
+ get {
+ if (!likelihood_support.HasValue) {
+ // emulate the SQLITE_VERSION_NUMBER macro
+ string[] v = Query<string> ("SELECT sqlite_version ()").Split ('.');
+ likelihood_support = (Int32.Parse (v[0]) * 1000000 +
+ Int32.Parse (v[1]) * 1000 +
+ Int32.Parse (v[2])) >= 3008001;
+ }
+ return likelihood_support.Value;
+ }
+ }
+
public BansheeDbConnection () : this (DatabaseFile)
{
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